Spec Ops: The Line was like one of the best games of the seventh gen. Probably worth it on its own, honestly.
I know you're being sarcastic, but Limbo's fun. I love the factory stages with the buzzsaws and the brush work shadow effects on everything.
I put down a dollar for the basic set. I didn't own any of them so I figure they are worth a try for that. I might even do the break average when my backlogged paycheck comes in and they add in whatever on Tuesday. I can't really justify the $20 for games I don't care for. Especially when I've got Infinite on PSN.